What is CalCheck.exe?

The genuine CalCheck.exe file is a software component of Calendar Checker Application by Ulead Systems.
Calcheck.exe is a file belonging to part of ULead's Photo Express software. It is responsible for updating the desktop calendar which can be installed as an option as part of software. This process is non-essential and can slow down the system's boot-up. Ulead was founded on August 5, 1989 with headquarters in Taipei, Taiwan. ULead was later acquired by Intervideo in 2005. In 2006 Corel announced the acquisition of InterVideo and Ulead was complete.

CalCheck stands for Photo Express -- Calendar Checker

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the CalCheck.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for CalCheck.exe related errors

CalCheck.exe file information

Windows Task Manager with CalCheck
CalCheck.exe process in Windows Task Manager

The process known as Photo Express -- Calendar Checker or Nova Development Photo Explosion belongs to software Calendar Checker Application or Ulead Photo Express (version 5 SE) by Ulead Systems ( or Nova Development (

Description: CalCheck.exe is not essential for the Windows OS and causes relatively few problems. CalCheck.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 69,632 bytes (63% of all occurrences), 55,296 bytes or 57,344 bytes. 
There is an icon for this program on the taskbar next to the clock. CalCheck.exe is not a Windows system file. Therefore the technical security rating is 25% dangerous, however you should also read the user reviews.

Uninstalling this variant: In the event of any problems with CalCheck.exe, you can also uninstall Ulead Photo Express 5 SE or Ulead Photo Express 2.0 SE software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify CalCheck.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: Some malware camouflages itself as CalCheck.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the CalCheck.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

calcheck.exe is a part of ULead Photo Express software (comment from another site see link)
  Elena Malnati  
nicht viel-macht im Moment nur Probleme?
It installed with Photo Explosion Special Edition
  Paul Thompson  

Summary: Average user rating of CalCheck.exe: based on 3 votes with 3 user comments. 2 users think CalCheck.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous.

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Best practices for resolving CalCheck issues

A clean and tidy computer is the key requirement for avoiding problems with CalCheck. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the CalCheck.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

CalCheck.exe [all]